1656610050620 has 144 divisors (see below), whose sum is σ = 4236408304128. Its totient is φ = 541536589440.

The previous prime is 1656610050611. The next prime is 1656610050637. The reversal of 1656610050620 is 260500166561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6891779 + ... + 7128101.

It is an arithmetic number, because the mean of its divisors is an integer number (29419502112).

Almost surely, 2^{1656610050620} is an apocalyptic number.

1656610050620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1656610050620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118204152064).

1656610050620 is an abundant number, since it is smaller than the sum of its proper divisors (2579798253508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1656610050620 is a wasteful number, since it uses less digits than its factorization.

1656610050620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236680 (or 236671 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 1656610050620 in words is "one trillion, six hundred fifty-six billion, six hundred ten million, fifty thousand, six hundred twenty".